mail to To, Cc and Bcc headers
mail to To, Cc and Bcc headers

Any emails in the To, Cc or Bcc headers are now added to the recipient
list.  Maybe this is a bad idea, but it makes sense to me.

git-svn-id: e1830d3a8a5e47b150ef5570d9347d07d8e76ee6@7657 7322e99d-02ea-0310-aa39-e9a107903beb

dokipen/trac-announcer-plugin